CN102868707A - Method and system for downloading and transcoding file - Google Patents
Method and system for downloading and transcoding file Download PDFInfo
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- CN102868707A CN102868707A CN 201110185020 CN201110185020A CN102868707A CN 102868707 A CN102868707 A CN 102868707A CN 201110185020 CN201110185020 CN 201110185020 CN 201110185020 A CN201110185020 A CN 201110185020A CN 102868707 A CN102868707 A CN 102868707A
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Abstract
The embodiment of the invention discloses a method a system for downloading and transcoding a file. The method comprises the steps that a task management server receives a downloading and transcoding task request, wherein the downloading and transcoding task request carries out downloading task information and transcoding task information; the task management server inquiries an index database according to the downloading task information and the transcoding task information, and judges whether a target file is stored in a cloud storage server or not; when the target file is not stored in the cloud storage server, the task management server issues a transcoding task, the transcoding server transcodes an original file into the target file according to the transcoding task, and stores the target task in the cloud storage server; and when the target file is stored in the cloud storage server, a downloading client can obtain the target file stored in the cloud storage server. By applying the method and the system, the time for the downloading client to obtain the transcoded target file can be shortened.
Description
Technical field
The present invention relates to field of computer technology, relate in particular to the method and system of a kind of file download and transcoding.
Background technology
The video file transcoding refers to convert the video code flow of compressed encoding to another video code flow, to adapt to the different network bandwidths, different terminal processing capacity and different user's requests.Transcoding is a first decoding in essence, and therefore the process of coding is changed the code stream of front and back and may be followed identical video encoding standard again, also may not follow identical video encoding standard.
Three kinds of main transcoding demands are arranged at present: one, between the different video form, change, for example forward to H.264 from MPEG-2 or MPEG-4; Its two, in order to satisfy the demand of heterogeneous networks bandwidth or device plays speed, carry out the conversion of bit rate, to realize content delivery or broadcast; Its three, between different definition, change, for example, transfer HD video to SD even lower definition, latter's reverse process, be about to SD or more the video of low definition transfer HD video to.
Existing method to the file destination behind the acquisition transcoding is mainly:
Original document is downloaded to this locality by downloader, change into file destination in this locality by the transcoding instrument again.
As seen, because need to be from the Internet download original document, this process often needs long-time on-hook, and, download finish after, also need to pass through the instrument transcoding in this locality, therefore, required time of the file destination behind the existing acquisition transcoding is longer.
Summary of the invention
In view of this, the invention provides the method and system of a kind of file download and transcoding, in order to shorten the required time of file destination after download client obtains transcoding.
Technical scheme of the present invention specifically is achieved in that
The method of a kind of file download and transcoding, the method comprises:
The task management server receives to be downloaded and the transcoding task requests, carries downloading task information and transcoding mission bit stream in this download and the transcoding task requests;
The task management server judges according to described downloading task information and described transcoding mission bit stream search index database whether described file destination has been stored in the cloud storage server;
When described file destination was not stored in the cloud storage server, the task management server issued the transcoding task, and transcoding server is file destination according to described transcoding task with the original document transcoding, and described file destination is stored in the cloud storage server;
When described file destination has been stored in the cloud storage server, the described file destination of storing in the download client acquisition cloud storage server.
The system of a kind of file download and transcoding, this system comprises download client, task management server and transcoding server;
Described download client is used for sending download and transcoding task requests to the task management server, and the file destination of storing in the acquisition cloud storage server wherein, carries downloading task information and transcoding mission bit stream in described download and the transcoding task requests;
Described task management server, be used for receiving and download and the transcoding task requests, according to described downloading task information and described transcoding mission bit stream search index database, judge whether described file destination has been stored in the cloud storage server, when described file destination is not stored in the cloud storage server, issue the transcoding task;
Described transcoding server, being used for according to described transcoding task is file destination with the original document transcoding, and described file destination is stored in the cloud storage server.
As seen from the above technical solution, among the present invention, in the download and transcoding task requests that the task management server receives, both carried downloading task information, also carry the transcoding mission bit stream, judge by the search index database whether file destination has been stored in the cloud storage server.
If file destination has been stored in the cloud storage server, then download client can directly obtain described file destination from the cloud storage server, thereby needn't after downloading original document, carry out again the transcoding operation in this locality, therefore can shorten the required time of file destination after download client obtains transcoding.
If file destination is not stored in the cloud storage server, then carry out the transcoding operation by network side according to the transcoding mission bit stream, be file destination with the original document transcoding, and file destination is stored in the cloud storage server, so that download client can obtain described file destination from the cloud storage server, download first original document with download client, and then carry out transcoding in this locality and compare, also can shorten the required time of file destination that obtains behind the transcoding.
Description of drawings
Fig. 1 is the method flow diagram of file download provided by the invention and transcoding.
Fig. 2 is the first embodiment flow chart of file download provided by the invention and code-transferring method.
Fig. 3 is the flow chart that transcoding server is processed the transcoding task.
Fig. 4 is the second embodiment flow chart of file download provided by the invention and code-transferring method.
Fig. 5 is the composition schematic diagram of file download provided by the invention and trans-coding system.
Embodiment
Fig. 1 is the method flow diagram of file download provided by the invention and transcoding.
As shown in Figure 1, the method comprises:
Wherein, carry downloading task information and transcoding mission bit stream in described download and the transcoding task requests, described downloading task information comprises sign and the download address information of original document, the transcoding parameter information that it is file destination that described transcoding mission bit stream comprises described original document transcoding.
The below lifts two specific embodiments file download provided by the invention and code-transferring method is introduced, and specifically sees also Fig. 2～Fig. 4.
Fig. 2 is the first embodiment flow chart of file download provided by the invention and code-transferring method.
As shown in Figure 2, the method comprises:
Carry the download address information of original document in the downloading task information wherein, carry the object format information of transcoding in the transcoding mission bit stream.Wherein, the object format information of transcoding can be mp4, avi, the forms such as rmvb, also can be type or the type information of playing platform, such as Android mobile phone, ipad etc., can determine the object format information that playing platform is supported according to type and the type information of playing platform, the object format information of described playing platform support is the object format information of carrying in the described transcoding mission bit stream.
By this step, the user not only can input downloading task information in download client, can also input the transcoding mission bit stream.
Wherein, the cloud storage server is the concept of a broad sense, can be any storage server that can inquire, and also can be understood as predetermined storage server.
Wherein, the information of the file that index data base is stored in take original document sign and transcoded format as compound key-value pair cloud storage server is stored, the described information of storing in the index data base can also comprise other relevant information of transcoding, such as original document size, file destination sign, file destination at address, file destination size and the transcoding of cloud storage server constantly etc.
Step 204, the task management server returns the transcoding success message to client, and download client is issued in the address of file destination in the cloud storage server, and download client can download to file destination PC or other playing platforms accordingly.Process ends.
Wherein, the address of file destination in storage server can be carried in the described transcoding success message and issue download client.
Wherein, file destination has been stored in the cloud storage server, had the user that this original document was carried out transcoding before illustrating, and the form behind the transcoding is identical with described file destination, does not therefore need to repeat transcoding again.
Generally carry original document sign, original document size, original document download address and the transcoded format information etc. in the cloud storage server in this transcoding task.
Transcoding target wherein generally refers to the format information of file destination, the transcoding target can be a kind of format information, also can be multiple format information, therefore the mapping relations of downloading task and transcoding target can man-to-manly concern, the i.e. corresponding a kind of transcoded format of downloading task, also can be the relation of one-to-many, i.e. the corresponding multiple transcoded format of downloading task.
Wherein, generally carry the download address of original document in the downloading task, such as URL address, emule address, bt seed and the bt index etc. of original document.
In this step, Download Server generally is that off-line is downloaded original document.Download Server is stored in the cloud storage server with the original document of downloading, and the storage address information of this original document in the cloud storage server etc. write index data base.
Wherein, when the mapping relations of download task and transcoding target are man-to-man the relation, generate a transcoding task, when described mapping relations are concerning of one-to-many, generate a plurality of transcoding tasks, namely corresponding every kind of transcoded format generates a transcoding task, is used for original document is transcoded into the file destination of this kind form.
In this step, after transcoding task Distributor is received the transcoding task, from the transcoding server cluster, pick out the process of a free time and process the transcoding task.If there is not idle process, then in formation, wait for.Transcoding task Distributor receives transcoding server to the report information of transcoding state and progress, and the report information that receives is issued the task management server.
Transcoding task Distributor can also filter identical transcoding task, and in other words, same transcoding task only need to be to the transcoding server pocket transmission once, and different users can share same transcoding task.
By identical transcoding task is filtered, can avoid starting different processes and carry out identical transcoding task, thereby save resource.
Wherein, the transcoding mission bit stream received of transcoding server generally comprises address in the cloud storage server of original document sign, original document size, original document, transcoded format information etc.
In method shown in Figure 2, the task management server also can not pass through the downloading task Distributor, but directly downloading task is distributed to Download Server when issuing downloading task.Similarly, the task management server also can not pass through transcoding task Distributor, but directly the transcoding task is distributed to transcoding server when issuing the transcoding task.
Fig. 3 is the flow chart that transcoding server is processed the transcoding task.
As shown in Figure 3, this flow process generally comprises:
In this step, by the information of original document and file destination and the mapping relations of original document and file destination are write index data base, the request that it is described file destination that if follow-up task management server receives described original document transcoding again, then the task management server can directly return the transcoding success message to client, download client is according to the file destination address of carrying in this transcoding success message, can be directly download file destination behind the transcoding from the cloud storage server, greatly shorten the required time of file destination that obtains behind the transcoding.
Wherein, the address of file destination in the cloud storage server can be carried in the message of transcoding success.Transcoding server is issued transcoding task Distributor with the message of transcoding success, transcoding task Distributor is issued the task management server with the message of this transcoding success again, by the task management server message of this transcoding success is issued download client at last.
By Fig. 1～Fig. 3 as seen, among the present invention, when the user submits download request to by download client, set the object format information of transcoding, transmission carries download and the transcoding task requests of downloading task information and transcoding mission bit stream, according in the cloud storage server to the storage condition of original document and file destination, when in the cloud storage server, not storing file destination, by network side after obtaining original document, directly carry out the transcoding operation, download client is issued in file destination address behind the transcoding, thereby can shorten the required time of file destination that obtains.
In order to reduce coupling, the described method of Fig. 2 and Fig. 3 is separated Download Server and transcoding server, by the download server original document, and the original document of downloading uploaded to the cloud storage server, from the cloud storage server, download original document by transcoding server, and this original document is transcoded into file destination.
Another embodiment of the present invention is, Download Server and transcoding server are merged, and namely finished by a server and downloads original document and be the work of file destination with the original document transcoding, specifically sees also Fig. 4.
Fig. 4 is the second embodiment flow chart of file download provided by the invention and code-transferring method.
As shown in Figure 4, the method comprises:
Step 401, download client receive to be downloaded and the transcoding task requests, carries downloading task information and transcoding mission bit stream in this download and the transcoding task requests.
This step is identical with step 201.
This step is identical with step 402.
This step is identical with step 204.
In step 405 and step 406, the task management server can be issued the task Distributor with transcoding task or download and transcoding task, then by the task Distributor from download and the transcoding server cluster select a download and transcoding server, download and the transcoding server of selecting issued in described transcoding task or download and transcoding task.
Step 409 is downloaded and transcoding server is issued download client with the message of transcoding success by the task management server, and download client is downloaded described file destination according to the file destination address of task management server notification from the cloud storage server.
In Fig. 2～method shown in Figure 4, network side is issued download client by network side with the storage address information of file destination after the original document transcoding is file destination, and download client is downloaded described file destination according to described storage address information from network side.
The present invention also provides a kind of file to download and trans-coding system, specifically sees also Fig. 5.
Fig. 5 is the composition schematic diagram of file download provided by the invention and trans-coding system.
As shown in Figure 5, this system comprises download client 501, task management server 502 and transcoding server 503.
Wherein, system shown in Figure 5 can also comprise Download Server.
Described Download Server is used for downloading original document according to described downloading task, and described original document is stored in the cloud storage server.
Further, this system can also comprise the downloading task Distributor.
Described downloading task Distributor is used for receiving described downloading task, selects Download Server from the Download Server cluster, described downloading task is distributed to the Download Server of selecting.
System shown in Figure 5 can also comprise transcoding task Distributor.
Described transcoding task Distributor is used for receiving described transcoding task, selects transcoding server from the transcoding server cluster, and described transcoding task is distributed to the transcoding server of selecting.
Wherein, described transcoding task Distributor can be used for the idle condition according to each transcoding server of transcoding server cluster, selects transcoding server from described transcoding server cluster.
In the system shown in Figure 5, task management server 502 can be used for, and when file destination and original document all are not stored in the cloud storage server, issues downloading task and transcoding task.
In the system shown in Figure 5, task management server 502 can be issued download client 501 with the storage address information of file destination in the cloud storage server, and download client 501 is downloaded described file destination according to described storage address information from the cloud storage server.
Perhaps, carry the download client address information in download and the transcoding task requests, task management server 502 or transcoding server 503 are issued download client 501 according to described download client address information with the described file destination in the cloud storage server.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of making, is equal to replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (15)
1. a file is downloaded and the method for transcoding, it is characterized in that the method comprises:
The task management server receives to be downloaded and the transcoding task requests, carries downloading task information and transcoding mission bit stream in this download and the transcoding task requests;
The task management server judges according to described downloading task information and described transcoding mission bit stream search index database whether described file destination has been stored in the cloud storage server;
When described file destination was not stored in the cloud storage server, the task management server issued the transcoding task, and transcoding server is file destination according to described transcoding task with the original document transcoding, and described file destination is stored in the cloud storage server;
When described file destination has been stored in the cloud storage server, the described file destination of storing in the download client acquisition cloud storage server.
2. method according to claim 1 is characterized in that, when file destination and original document all were not stored in the cloud storage server, the task management server issued before the transcoding task, and the method also comprises:
The task management server issues downloading task, sets up the mapping relations of downloading task and destination file format information, and Download Server is downloaded original document according to described downloading task, and described original document is stored in the cloud storage server;
The task management server generates the transcoding task according to described mapping relations after described original document is downloaded successfully.
3. method according to claim 2 is characterized in that, the task management server issues downloading task and comprises:
The task management server issues downloading task to the downloading task Distributor;
The downloading task Distributor is selected Download Server from the Download Server cluster, downloading task is distributed to the Download Server of selecting.
4. method according to claim 1 is characterized in that,
Be not stored in the cloud storage server and original document when being stored in the cloud storage server at file destination, the task management server issues the transcoding task, transcoding server is downloaded described original document from the cloud storage server, is file destination according to described transcoding task with the original document transcoding.
5. according to claim 1 and 2 or 3 or 4 described methods, it is characterized in that the task management server issues the transcoding task and comprises:
The task management server issues the transcoding task to transcoding task Distributor, transcoding task Distributor is according to the idle condition of each transcoding server in the transcoding server cluster, from the transcoding server cluster, select transcoding server, described transcoding task is distributed to the transcoding server of selecting.
6. method according to claim 1 is characterized in that, when file destination and original document all were not stored in the cloud storage server, the method comprised that also the task management server issues downloading task;
Transcoding server is before the file destination according to described transcoding task with the original document transcoding, and the method also comprises:
Described transcoding server is downloaded original document according to described downloading task.
7. method according to claim 1 is characterized in that, the described file destination that described download client obtains to store in the cloud storage server comprises:
The task management server is issued download client with the storage address information of file destination in the cloud storage server, and download client is downloaded described file destination according to described storage address information from the cloud storage server.
8. method according to claim 1 is characterized in that,
Described downloading task information comprises sign and the download address information of original document, the transcoding parameter information that it is file destination that described transcoding mission bit stream comprises described original document transcoding.
9. a file is downloaded and the system of transcoding, it is characterized in that this system comprises download client, task management server and transcoding server;
Described download client is used for sending download and transcoding task requests to the task management server, and the file destination of storing in the acquisition cloud storage server wherein, carries downloading task information and transcoding mission bit stream in described download and the transcoding task requests;
Described task management server, be used for receiving and download and the transcoding task requests, according to described downloading task information and described transcoding mission bit stream search index database, judge whether described file destination has been stored in the cloud storage server, when described file destination is not stored in the cloud storage server, issue the transcoding task;
Described transcoding server, being used for according to described transcoding task is file destination with the original document transcoding, and described file destination is stored in the cloud storage server.
10. system according to claim 9 is characterized in that, this system also comprises Download Server;
Described task management server, be used for when file destination and original document all are not stored in the cloud storage server, issue downloading task, set up the mapping relations of downloading task and destination file format information, after described original document is downloaded successfully, generate the transcoding task according to described mapping relations, issue the transcoding task;
Described Download Server is used for downloading original document according to described downloading task, and described original document is stored in the cloud storage server.
11. system according to claim 10 is characterized in that, this system also comprises the downloading task Distributor;
Described task management server is used for issuing downloading task to the downloading task Distributor;
Described downloading task Distributor is used for receiving described downloading task, selects Download Server from the Download Server cluster, described downloading task is distributed to the Download Server of selecting.
12. according to claim 9 or 10 or 11 described systems, it is characterized in that this system also comprises transcoding task Distributor;
Described task management server is used for issuing the transcoding task to transcoding task Distributor;
Described transcoding task Distributor, be used for receiving described transcoding task, according to the idle condition of each transcoding server in the transcoding server cluster, from the transcoding server cluster, select transcoding server, described transcoding task is distributed to the transcoding server of selecting.
13. system according to claim 9 is characterized in that,
Described task management server is used for issuing downloading task and transcoding task when file destination and original document all are not stored in the cloud storage server;
Described transcoding server is used for downloading original document according to described downloading task, is file destination according to described transcoding task with described original document transcoding.
14. system according to claim 9 is characterized in that,
The task management server is issued download client with the storage address information of file destination in the cloud storage server, and download client is downloaded described file destination according to described storage address information from the cloud storage server.
15. system according to claim 9 is characterized in that,
Described downloading task information comprises sign and the download address information of original document, the transcoding parameter information that it is file destination that described transcoding mission bit stream comprises described original document transcoding.
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| CN 201110185020 CN102868707A (en) | 2011-07-04 | 2011-07-04 | Method and system for downloading and transcoding file |
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| CN 201110185020 CN102868707A (en) | 2011-07-04 | 2011-07-04 | Method and system for downloading and transcoding file |
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| CN103207785A (en) * | 2013-04-23 | 2013-07-17 | 北京奇虎科技有限公司 | Method, device, and system for processing data download request |
| CN103561279A (en) * | 2013-10-10 | 2014-02-05 | 中兴通讯股份有限公司 | Method and system for playing multi-media file and cloud transcoding service device |
| CN104123290A (en) * | 2013-04-25 | 2014-10-29 | 上海斐讯数据通信技术有限公司 | File operating method based on cloud storage |
| CN104159127A (en) * | 2014-08-21 | 2014-11-19 | 北京奇艺世纪科技有限公司 | Method, device and system of video transcoding |
| CN104469401A (en) * | 2014-12-25 | 2015-03-25 | 武汉市烽视威科技有限公司 | HLS based on-demand playing system and method |
| CN105657572A (en) * | 2015-12-29 | 2016-06-08 | 锐达互动科技股份有限公司 | Video-on-demand method and system based on WEB |
| CN105898318A (en) * | 2015-12-21 | 2016-08-24 | 乐视云计算有限公司 | Offline transcoding method and system |
| CN105912551A (en) * | 2015-12-23 | 2016-08-31 | 乐视云计算有限公司 | System and method for file management |
| CN106658047A (en) * | 2016-12-06 | 2017-05-10 | 新奥特（北京）视频技术有限公司 | Streaming media server cloud data processing method and device |
| CN106973306A (en) * | 2017-02-14 | 2017-07-21 | 北京时间股份有限公司 | Distributed trans-coding method, apparatus and system |
| CN107153574A (en) * | 2016-03-03 | 2017-09-12 | 北京大学 | Picture code-transferring method and system |
| CN109309646A (en) * | 2017-07-27 | 2019-02-05 | 贵州白山云科技股份有限公司 | A kind of multi-media transcoding method and system |
| CN111478951A (en) * | 2020-03-26 | 2020-07-31 | 深圳市鸿合创新信息技术有限责任公司 | File issuing method and device |
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| CN103207785A (en) * | 2013-04-23 | 2013-07-17 | 北京奇虎科技有限公司 | Method, device, and system for processing data download request |
| CN103207785B (en) * | 2013-04-23 | 2016-08-31 | 北京奇虎科技有限公司 | The processing method of data download request, Apparatus and system |
| CN104123290A (en) * | 2013-04-25 | 2014-10-29 | 上海斐讯数据通信技术有限公司 | File operating method based on cloud storage |
| CN103561279A (en) * | 2013-10-10 | 2014-02-05 | 中兴通讯股份有限公司 | Method and system for playing multi-media file and cloud transcoding service device |
| CN104159127A (en) * | 2014-08-21 | 2014-11-19 | 北京奇艺世纪科技有限公司 | Method, device and system of video transcoding |
| CN104159127B (en) * | 2014-08-21 | 2019-02-22 | 北京奇艺世纪科技有限公司 | A kind of video transcoding method, apparatus and system |
| CN104469401A (en) * | 2014-12-25 | 2015-03-25 | 武汉市烽视威科技有限公司 | HLS based on-demand playing system and method |
| WO2017107514A1 (en) * | 2015-12-21 | 2017-06-29 | 乐视控股（北京）有限公司 | Offline transcoding method and system |
| CN105898318A (en) * | 2015-12-21 | 2016-08-24 | 乐视云计算有限公司 | Offline transcoding method and system |
| CN105912551A (en) * | 2015-12-23 | 2016-08-31 | 乐视云计算有限公司 | System and method for file management |
| CN105657572A (en) * | 2015-12-29 | 2016-06-08 | 锐达互动科技股份有限公司 | Video-on-demand method and system based on WEB |
| CN107153574A (en) * | 2016-03-03 | 2017-09-12 | 北京大学 | Picture code-transferring method and system |
| CN106658047A (en) * | 2016-12-06 | 2017-05-10 | 新奥特（北京）视频技术有限公司 | Streaming media server cloud data processing method and device |
| CN106658047B (en) * | 2016-12-06 | 2020-04-10 | 新奥特（北京）视频技术有限公司 | Streaming media server cloud data processing method and device |
| CN106973306A (en) * | 2017-02-14 | 2017-07-21 | 北京时间股份有限公司 | Distributed trans-coding method, apparatus and system |
| CN109309646A (en) * | 2017-07-27 | 2019-02-05 | 贵州白山云科技股份有限公司 | A kind of multi-media transcoding method and system |
| CN111526379A (en) * | 2019-02-03 | 2020-08-11 | 华为技术有限公司 | Data transmission method and data transmission device |
| CN111526379B (en) * | 2019-02-03 | 2021-06-29 | 华为技术有限公司 | Data transmission method and data transmission device |
| CN111478951A (en) * | 2020-03-26 | 2020-07-31 | 深圳市鸿合创新信息技术有限责任公司 | File issuing method and device |
| CN111478951B (en) * | 2020-03-26 | 2023-08-08 | 深圳市鸿合创新信息技术有限责任公司 | File issuing method and device |
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Application publication date: 20130109 |